shot vs headshot

shot and headshot both are nouns.

Word	Noun	Adjective	Verb	Adverb
shot	Yes	Yes	No	No
headshot	Yes	No	No	No

As nouns, headshot is a hyponym of shot; that is, headshot is a word with a more specific, narrower meaning than shot:

Other hyponyms of shot include shoot, countershot, discharge, firing, firing off, gunfire, gunshot, shellfire, potshot.

As nouns, headshot is a hyponym of shot; that is, headshot is a word with a more specific, narrower meaning than shot:

Other hyponyms of shot include basketball shot, shot, slapshot.

shot (noun)	headshot (noun)
the act of firing a projectile	a shot aimed at a person's head
the act of putting a liquid into the body by means of a syringe	an attempt to put the soccer ball into the net by using the head
informal words for any attempt or effort	a photograph of a person's head
(sports) the act of swinging or striking at a ball with a club or racket or bat or cue or hand
the launching of a missile or spacecraft to a specified destination
an attempt to score in a game
a blow hard enough to cause injury
throwing the basketball toward the hoop
a solid missile discharged from a firearm
an informal photograph; usually made with a small hand-held camera
an explosive charge used in blasting
sports equipment consisting of a heavy metal ball used in the shot put
an estimate based on little or no information
an aggressive remark directed at a person like a missile and intended to have a telling effect
a consecutive series of pictures that constitutes a unit of action in a film
a person who shoots (usually with respect to their ability to shoot)
a small drink of liquor
a chance to do something

shot (adjective)	headshot (adjective)
varying in color when seen in different lights or from different angles